Perhaps unsurprisingly, Siegel is skeptical that the seven stars identified in the new paper are actually surrounded by Dyson spheres. "My personal view is that, out of the nearly ~2 billion stars ...

Also known as the "Seven Sisters" and Messier 45, they derive their English name from Greek legend in which the stars represent the daughters of the ocean nymph Pleione. You may like How to see ...

But before we go on a star-hopping tour from the Big Dipper, let’s take a look at the story behind the Dipper itself and meet the seven stars that we join to draw it in our mind’s eye.